code: def read_settings_file():
      # Reads settings file name from commandline arguments.
      if len(sys.argv) != 2:
          print_error_and_exit(
              f"Wrong number of arguments. {len(sys.argv)}\n"
              f"Pass the settings filename."
          )
      try:
          py_settings_file = open(sys.argv[1])
          py_settings = yaml.load(
              py_settings_file, Loader=yaml.SafeLoader
          )
      except Exception as exception:
          print_error_and_exit(
              "Cannot read settings file!\n" f"{exception}"
          )
      else:
          return py_settings
  
file_path: lets-plot/build_release.py
imports: import platform
  import sys
  import subprocess
  import yaml
label_desc: Use image node_id 3 for calling a global function with example usage: read_settings_file() and returns: py_settings